The mile per hour, commonly abbreviated as mph, is a unit of speed originating from the British imperial system and widely used in the United States and the United Kingdom. It’s fascinating to know that the concept of mph has historical significance dating back to the invention of the first automobiles in the late 19th century. The iconic cars of the 1920s, often called “classic cars,” were among the first to publicly advertise their capabilities in mph, including models like the Ford Model T, which had a top speed of about 45 mph.
Interestingly, mph is still the primary speed measurement unit for most road signage in countries such as the US and the UK, even while the rest of the world predominantly uses kilometers per hour (kph). The land-speed record attempts, including those made with the supersonic car “ThrustSSC,” which achieved an astonishing 763 mph in 1997, also emphasize the significance of this unit in measuring extreme speeds.
Foot per second (ft/s) is a unit commonly used to measure velocity, particularly in the United States. It’s fascinating to note that this unit offers a unique perspective on speed, especially when compared to more universal units like meters per second. For instance, the speed of sound travels at approximately 1,125 feet per second, illustrating just how fast sound waves can move. Moreover, this unit is an essential part of the British Imperial and U.S. customary systems, embodying the historical evolution of measurement standards.
Interestingly, foot per second was also a critical measure in ancient construction and engineering, where precision in the rate of stone placement or water flow impacted architectural marvels. Today, it’s frequently applied in sports science to analyze athletic performances, such as a sprinter’s burst off the starting blocks or the flight speed of a baseball pitcher’s throw. This unit continues to bridge past engineering feats with modern technological applications, providing a unique linkage of history and contemporary science.
| Miles per hour | Feet per second |
|---|---|
0
mph
|
0
ft/s
|
2
mph
|
2.93333
ft/s
|
4
mph
|
5.86667
ft/s
|
6
mph
|
8.8
ft/s
|
8
mph
|
11.73334
ft/s
|
10
mph
|
14.66667
ft/s
|
12
mph
|
17.6
ft/s
|
14
mph
|
20.53334
ft/s
|
16
mph
|
23.46667
ft/s
|
18
mph
|
26.40001
ft/s
|
20
mph
|
29.33334
ft/s
|
22
mph
|
32.26668
ft/s
|
24
mph
|
35.20001
ft/s
|
26
mph
|
38.13334
ft/s
|
28
mph
|
41.06668
ft/s
|
30
mph
|
44.00001
ft/s
|
32
mph
|
46.93335
ft/s
|
34
mph
|
49.86668
ft/s
|
36
mph
|
52.80001
ft/s
|
38
mph
|
55.73335
ft/s
|
40
mph
|
58.66668
ft/s
|
42
mph
|
61.60002
ft/s
|
44
mph
|
64.53335
ft/s
|
46
mph
|
67.46668
ft/s
|
48
mph
|
70.40002
ft/s
|
50
mph
|
73.33335
ft/s
|
52
mph
|
76.26669
ft/s
|
54
mph
|
79.20002
ft/s
|
56
mph
|
82.13336
ft/s
|
58
mph
|
85.06669
ft/s
|
60
mph
|
88.00002
ft/s
|
62
mph
|
90.93336
ft/s
|
64
mph
|
93.86669
ft/s
|
66
mph
|
96.80003
ft/s
|
68
mph
|
99.73336
ft/s
|
70
mph
|
102.66669
ft/s
|
72
mph
|
105.60003
ft/s
|
74
mph
|
108.53336
ft/s
|
76
mph
|
111.4667
ft/s
|
78
mph
|
114.40003
ft/s
|
80
mph
|
117.33336
ft/s
|
82
mph
|
120.2667
ft/s
|
84
mph
|
123.20003
ft/s
|
86
mph
|
126.13337
ft/s
|
88
mph
|
129.0667
ft/s
|
90
mph
|
132.00004
ft/s
|
92
mph
|
134.93337
ft/s
|
94
mph
|
137.8667
ft/s
|
96
mph
|
140.80004
ft/s
|
98
mph
|
143.73337
ft/s
|
100
mph
|
146.66671
ft/s
|
102
mph
|
149.60004
ft/s
|
104
mph
|
152.53337
ft/s
|
106
mph
|
155.46671
ft/s
|
108
mph
|
158.40004
ft/s
|
110
mph
|
161.33338
ft/s
|
112
mph
|
164.26671
ft/s
|
114
mph
|
167.20004
ft/s
|
116
mph
|
170.13338
ft/s
|
118
mph
|
173.06671
ft/s
|
120
mph
|
176.00005
ft/s
|
122
mph
|
178.93338
ft/s
|
124
mph
|
181.86672
ft/s
|
126
mph
|
184.80005
ft/s
|
128
mph
|
187.73338
ft/s
|
130
mph
|
190.66672
ft/s
|
132
mph
|
193.60005
ft/s
|
134
mph
|
196.53339
ft/s
|
136
mph
|
199.46672
ft/s
|
138
mph
|
202.40005
ft/s
|
140
mph
|
205.33339
ft/s
|
142
mph
|
208.26672
ft/s
|
144
mph
|
211.20006
ft/s
|
146
mph
|
214.13339
ft/s
|
148
mph
|
217.06672
ft/s
|
150
mph
|
220.00006
ft/s
|
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